Teslas occasionally need to reboot / hard reset their software too, when driving no less, and during that period all that information, and most of the controls, are unavailable (like windshield wipers, etc.)
That's not true. You cannot shift gears in the Model X, S, or 3 without the touchscreen - the only way to change into or out of park, drive, or reverse is to swipe on the touchscreen. Only the Model Y has a stalk and it is being removed in the next version.
Also even on older Teslas lights are controlled exclusively via touchscreen.
I don't know what to tell you, you are wrong. I drive a Tesla, I have specifically checked all of what I mentioned when I had this (in my opinion highly problematic) issue happen to me. Have you actually tried it?
As someone who lives in a place where it rains almost every day for 9 months of the year, this reinforces my decision to never buy a Tesla. Does this kill the headlights too?
I had it happen two times this year, but the original comment is wrong, you can use the wipers (and also the headlights) while the touch screen is rebooting.